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    <title>RGraph: Javascript charts library - donut charts</title>
    
    <meta name="keywords" content="rgraph html5 canvas example donut charts" />
    <meta name="description" content="RGraph: Javascript charts library -  Donut charts examples" />
    
    <meta property="og:title" content="RGraph: Javascript charts library" />
    <meta property="og:description" content="A charts library based on the HTML5 canvas tag" />
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    <script src="../libraries/RGraph.pie.js" ></script>
    <!--[if IE 8]><script src="../excanvas/excanvas.original.js"></script><![endif]-->
    
    <script>
        window.onload = function ()
        {
            var donut = new RGraph.Pie('donut1', [41,37,16,3,3]);
            donut.Set('chart.variant', 'donut');
            donut.Set('chart.linewidth', 5);
            donut.Set('chart.strokestyle', 'white');
            donut.Set('chart.title', "Browser share");
            donut.Set('chart.key', ['MSIE 7 (41%)', 'MSIE 6 (37%)', 'Firefox (16%)', 'Safari (3%)', 'Other (3%)']);
            donut.Set('chart.key.shadow', true);
            donut.Set('chart.key.shadow.offsetx', 0);
            donut.Set('chart.key.shadow.offsety', 0);
            donut.Set('chart.key.shadow.blur', 15);
            donut.Set('chart.key.shadow.color', '#ccc');
            donut.Set('chart.key.position', 'graph');
            donut.Set('chart.align', 'left');
            donut.Draw();


            function getGradient(obj, color)
            {
                var gradient = obj.context.createRadialGradient(obj.canvas.width / 2, obj.canvas.height / 2, 0, obj.canvas.width / 2, obj.canvas.height / 2, 200);
                gradient.addColorStop(0, 'black');
                gradient.addColorStop(0.5, color);
                gradient.addColorStop(1, 'black');
                
                return RGraph.isIE8() ? color : gradient;
            }

            var donut2 = new RGraph.Pie('donut2', [8,6,5,3,8,9,9,4]);
            
            // Create the gradients
            var gradient = getGradient(donut2, 'red');
            var gradient2 = getGradient(donut2, 'green');
            var gradient3 = getGradient(donut2, 'pink');
            var gradient4 = getGradient(donut2, 'yellow');
            var gradient5 = getGradient(donut2, 'grey');
            var gradient6 = getGradient(donut2, 'cyan');
            var gradient7 = getGradient(donut2, 'red');
            var gradient8 = getGradient(donut2, '#ddd');
            var gradient9 = getGradient(donut2, 'blue');

            donut2.Set('chart.variant', 'donut');
            donut2.Set('chart.labels', ['Flipper', 'Harry', 'Ben', 'Richard', 'Keith', 'Ben', 'George', 'Barry']);
            donut2.Set('chart.title', "Sales figures for week 43");
            donut2.Set('chart.gutter.left', 35);
            donut2.Set('chart.gutter.right', 35);
            donut2.Set('chart.strokestyle', 'rgba(0,0,0,0)');
            donut2.Set('chart.colors', [gradient, gradient2, gradient3, gradient4, gradient5, gradient6, gradient7, gradient8, gradient9]);
            donut2.Draw();
        }
    </script>

  
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<h1>RGraph: <span>Javascript charts library</span> - Donut charts</h1>

    <script>
        if (RGraph.isIE8()) {
            document.write('<div style="background-color: #fee; border: 2px dashed red; padding: 5px"><b>Important</b><br /><br /> Internet Explorer 8 does not natively support the HTML5 canvas tag, so if you want to see the charts, you can either:<ul><li>Install <a href="http://code.google.com/chrome/chromeframe/">Google Chrome Frame</a></li><li>Use ExCanvas. This is provided in the RGraph Archive.</li><li>Use another browser entirely. Your choices are Firefox 3.5+, Chrome 2+, Safari 4+ or Opera 10.5+. </li></ul> <b>Note:</b> Internet Explorer 9 fully supports the canvas tag.</div>');
        }
    </script>

    <div>

        <p>
            Formerly the Donut chart was a separate class, though now it's a variant of the Pie chart. This means smaller downloads and
            a much simpler implementation. Essentially it's a Pie chart with a big hole in the middle.
            comparisons easier.
        </p>

        <div>
            <ul>
                <li><a href="../docs/pie.html">Pie charts API documentation</a></li>
            </ul>
        </div>

        <div>
            <canvas id="donut1" width="430" height="350">[No canvas support]</canvas>
            <canvas id="donut2" width="450" height="350">[No canvas support]</canvas>
        </div>
    </div>


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